chore(deps): update dotnet monorepo to v7 (major)

[descope]

This PR contains the following updates:

Package	Type	Update	Change	OpenSSF
Microsoft.AspNetCore.Authentication.OpenIdConnect (source)	nuget	major	6.0.36 → 7.0.20
Microsoft.Extensions.Configuration (source)	nuget	major	6.0.2 → 7.0.0
Microsoft.Extensions.Configuration.EnvironmentVariables (source)	nuget	major	6.0.2 → 7.0.0
Microsoft.Extensions.Configuration.Json (source)	nuget	major	6.0.1 → 7.0.0
Microsoft.Extensions.Options.ConfigurationExtensions (source)	nuget	major	6.0.1 → 7.0.0

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This PR has been generated by Mend Renovate.